<template>
  <view>
   <view class="goods-list">
     <view v-for="(goods, i) in goodsList" :key='i' @click="gotoDetail(goods)">
       <my-goods :goods='goods'></my-goods>
     </view>
   </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        queryObj: {
          query: '',
          cid: '',
          pagenum: 1,
          pagesize: 10
        },
         // 商品列表的数据
            goodsList: [],
            // 总数量，用来实现分页
            total: 0,
            // 节流阀
            isloading :false
     };
    },
    onLoad(options) {
      // 将页面参数保存到this.queryObj中
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      this.getGoodsList()
    },
    methods:{
     async getGoodsList (cb) {
       // 打开节流阀
       this.isloading = true
        const { data: res } = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
        // 关闭节流阀
        this.isloading = false
        cb && cb()
        if (res.meta.status !== 200) return uni.$showMsg()
        this.goodsList = [...this.goodsList, ...res.message.goods]
        this.total = res.message.total
      },
       gotoDetail (goods) {
         uni.navigateTo({
           url:'/subpkgs/goods_detail/goods_detail?goods_id=' + goods.goods_id
         })
       }
    },
    onReachBottom() {
       // 判断是否还有下一页数据
       if (this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('没有更多了！')
       
       if (this.isloading) return
        // 让页码值自增
        this.queryObj.pagenum++
        // 重新获取数据
      this.getGoodsList()
    },
    onPullDownRefresh() {
      // 重置关键数据
      this.queryObj.pagenum = 1
      this.total = 0
      this.isloading = false
      this.goodsList = []
      // 重新发起请求
      this.getGoodsList(() => uni.stopPullDownRefresh())
    }
  }
</script>

<style lang="scss">

</style>
